To get back to Daves post about the names for the Quantum Class ships I've just seen mentioned that RCI actually registered 6 trademarks as names for new ships.
They are: Anthem of the Seas, Quantum of the Seas, Passion of the Seas,
Ovation of the Seas, Vantage of the Seas & Pulse of the Seas.
This is not official and I guess it still has to be confirmed by Royal Caribbean.